There have been some changes to the reporting style here on the Blog. Please refer to the post here for further information.
It is thanks to the amazing folks over at Oricon that we get to see these charts on a weekly basis, so be sure to head over to their site here and show them lots of love! In addition, all the data you find below is accessible via Oricon right here (Light Novel), here (Book), here (Bunko) and here (Bungei-sho). To access the sales data, be sure to click on the “Analytics” accordion and then click “Chart”.
Without further ado, the full list is as follows:
Light Novel Weekly Top 15
1. Blue Lock: Tatakai no Mae, Bokura wa. Niko・Kunigami・Hiori (NEW)
by (Author) Momo Moegi and (Original) Muneyuki Kaneshiro
Volume Information
Release Date: October 17, 2023
Days of Sales: 6
Price: 700 yen
Publisher: Kodansha
Estimated number of copies sold: 16,625
Link (JPN): CDJapan

Analysis
Blue Lock: Tatakai no Mae, Bokura wa. has reported a minor increase of 2.66% for the Niko・Kunigami・Hiori volume against the Chigiri・Reo・Rin volume, both in their first six days. Like Chigiri・Reo・Rin, despite the shorter days of sales against Isagi・Nagi・Bachira, sales for Niko・Kunigami・Hiori is nearly 2.5 times that of Chigiri・Reo・Rin (in its first week), making this the title’s best debut performance to date.
Additional Comments
A spin-off title of the main series that focuses on Niko, Kunigami and Hiori.
2. Tensei shita Daiseijo wa, Seijo de Aru Koto wo Hitakakusu Vol. 9 (NEW)
by (Story) Touya and (Art) Mahito Aobe
Volume Information
Release Date: October 18, 2023
Days of Sales: 5
Price: 1,300 yen
Publisher: Earth Star Entertainment
Estimated number of copies sold: 11,463
Link (JPN): Vol. 9

Analysis
The 9th volume of Tensei shita Daiseijo wa, Seijo de Aru Koto wo Hitakakusu has noted a 3.62% increase in copies sold against Volume 6, but against Volume 8, the latest volume has fallen by 11.49%, all in their first five days. Volume 9’s 11,463 copies sold are also not as great as the four-day sales of Volume 7 at 12,639 copies.
Additional Comments
It was adapted into a Manga series by artist Mahito Aobe that is serializing in Comic Earth☆Star with some of its chapters can be read for free right here in Japanese. The Light Novel is also available officially in English, published by Airship.
3. Housekishou Richard-shi no Nazo Kantei Vol. 13 (NEW)
by Nanako Tsujimura
Volume Information
Release Date: October 19, 2023
Days of Sales: 4
Price: 700 yen
Publisher: Shueisha
Estimated number of copies sold: 9,830
Link (JPN): Vol. 13

Additional Comments
The volume is titled “Glass no Kamen Budoukai” or “Glass Mask Ball Dance”.
Housekishou Richard-shi no Nazo Kantei was last seen with its 12th volume selling 8,420 copies in its first three days between June 13 and June 19, 2020.
4. Kyoto Teramachi Sanjou no Holmes Vol. 20